update workflow

Author: jpn--

README.md

@@ -20,3 +20,27 @@ new model components that have been added by the ActivitySim consortium over the
 past few years.
 
 See https://activitysim.github.io for more information.
+
+# Installation
+
+The following short Python script will download and prepare the example data 
+for the `prototype_mtc_extended` example model.
+
+```python
+from pathlib import Path
+from activitysim.examples.external import registered_external_example
+
+example_dir = registered_external_example(
+    name="prototype_mtc_extended", 
+    working_dir=Path.cwd()
+)
+```
+
+# Benchmarking
+
+The `prototype_mtc` example model is run using the `activitysim` command line tool.
+A quick and easy way to run the model for benchmarking is to use the following command:
+
+```shell
+activitysim workflow performance-benchmarking
+```

performance-benchmarking.yaml

@@ -0,0 +1,45 @@
+#
+#   This workflow runs the Prototype MTC extended model using full skims (1454 zones),
+#   in a single process runner.  It is well suited for conducting timing and
+#   memory usage studies, as well as smaller model quality and validation
+#   studies.
+#
+
+context_parser: pypyr.parser.keyvaluepairs
+steps:
+
+- description: Setting default workflow parameters
+  name: pypyr.steps.default
+  in:
+    defaults:
+      example_name: .
+      workflow_name: performance-benchmarking/mtc-extended
+      workspace: ..
+      create: False
+      compile: True
+      sharrow: True
+      legacy: True
+      reference: False
+      memory_profile: True
+      tag:
+      resume_after: _
+      fast: False
+      compile_n_households: 1000
+      main_n_households: 0
+      config_dirs: [ext-configs, configs]
+      data_dir: data_full
+      instrument: False
+      workplace_zone_agg:
+        caption: Workplaces by County
+        district_id: county_id
+      distance_skim: DIST
+      household_income: income
+      trace_hh_id:
+      trace_od:
+      chunk_method: hybrid_uss
+      chunk_training_mode: disabled
+
+- name: activitysim.workflows.steps.pype
+  in:
+    pype:
+      name: sharrow-contrast/_contrast_runner